| CHEN Zhen,GUO Zhong-cheng,ZHOU Wei-ming,WU Jian,WANG Yong-yin.Cathodic Polarization of Cyanide-free Alkaline Copper Plating from EDTA Bath[J],39(3):71-73 |
| Cathodic Polarization of Cyanide-free Alkaline Copper Plating from EDTA Bath |
| Received:November 09, 2009 Revised:June 10, 2010 |
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| DOI： |
| KeyWord:cyanide-free copper coating alkaline polarization curve bath performance |
| Author | Institution |
| CHEN Zhen |
Kunming University of Science and Technology, Kunming , China |
| GUO Zhong-cheng |
Kunming University of Science and Technology, Kunming , China |
| ZHOU Wei-ming |
Kunming University of Science and Technology, Kunming , China |
| WU Jian |
Kunming University of Science and Technology, Kunming , China |
| WANG Yong-yin |
Kunming University of Science and Technology, Kunming , China |
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| Abstract: |
| By studying the cathodic polarization curves under different complex-ratio, bath concentration(including the concentration of main salt, conductive salt and anxiliary complexing agent)and pH in EDTA bath of cyanidefree alkaline copper plating, the influences of bath composition on the cathodic polarization were discussed. The results indicate that increasing complex-ratio, lowering the concentration of Cu2+, and using higher concentration of KNO3and KNaC4H4O6will make a great contribution to increase the cathodic polarization, pH has no significant effect on the polarization. |
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